///

## 运行服务器程序

如果您手动安装了 ASGI 服务器，通常需要以特定格式传递一个导入字符串，以便服务器能够正确导入您的 FastAPI 应用：

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

/// note

命令 `uvicorn main:app` 的含义如下：

* `main`：指的是 `main.py` 文件（即 Python “模块”）。

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

/// note | Hinweis

Der Befehl `uvicorn main:app` bezieht sich auf:

Podrías pasar un `dict`, un `list`, etc.

Son manejados automáticamente por **FastAPI** y convertidos a JSON.

///

## Agrega headers personalizados { #add-custom-headers }

Existen algunas situaciones en las que es útil poder agregar headers personalizados al error HTTP. Por ejemplo, para algunos tipos de seguridad.

```

This is because **OAuth2** uses "form data" for sending the `username` and `password`.

///

Run the example with:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## Check it { #check-it }

<div align="center">
  <picture>
    <source media="(prefers-color-scheme: dark)" srcset="images/gradle-white-primary.png" width="700px">
    <img alt="Gradle Logo" src="images/gradle-dark-green-primary.png" width="600px">
  </picture>
</div>

<div align="center">
  <a href="https://ge.gradle.org/scans">
    <img src="https://img.shields.io/badge/Revved%20up%20by-Develocity-06A0CE?logo=Gradle&labelColor=02303A" alt="Revved up by Develocity">
  </a>

///

Führen Sie das Beispiel aus mit:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## Es testen { #check-it }

安装命令： `pip install python-multipart`。

这是因为 **OAuth2** 使用**表单数据**发送 `username` 与 `password`。

///

用下面的命令运行该示例：

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## 查看文档

      "greek_lowercase": {
        "type":       "lowercase",
        "language":   "greek"
      },
      "greek_keywords": {
        "type":       "keyword_marker",
        "keywords": ["Γεια σας", "κόσμος", "έρευνα"]
      },
      "greek_stemmer": {
        "type":       "stemmer",
        "language":   "greek"
      },
      "hindi_stop": {
        "type":       "stop",

<div class="termy">

```console
$ ADMIN_EMAIL="******@****.***" APP_NAME="ChimichangApp" fastapi run main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

/// tip | Совет

* installation
* activation
* update
* deactivation
* un-installation

When a plugin is installed we may want to check the license and make users agree. We may also want to unpack the given plugin in a particular location.